Chimpanzees start using a new tool-use gesture during an alpha male takeover

Similar to humans, non-human primates combine gestures, facial expressions, and vocalizations in various ways to communicate effectively. Researchers investigated one such signal, the 'leaf clip' gesture, which re-emerged in a wild chimpanzee group during an alpha takeover.

from Top Health News -- ScienceDaily https://ift.tt/2lIdL7Y